Feature summary (what you would like to be able to do):
Media files (jpg, png, gif, tif, webm, webp) can contain MetaData (EXIF, IPTC). Among the possible fields are the "WebStatement" and "LicensorURL". This fields are used by Google to display license information in its image search. In August the Digital Copyright Directive of the European Union will come into force wirth Upload filters that make uploading files to social media impossible if forbidden by copyright. Delivering this MetaData to users will make it easier to reuse MediaWiki content in the Web with the DCD implemented.
As it is a media file containing both this MetaData fields will be delivered to the user, if the original file is downloaded. Both fields are not delivered, if a thumb is downloaded. In the MetaData section of file information pages the WebStatement is shown but not the LicensorURL.
Thumbs do contain some MetaData like the "author" field, but not the needed WebStatement.
Proposed solution:
- show Webstatement and LicensorURL in meta data section of file description pages (not only for images, but also for webm files)
- keep both fields when generating thumbs (images and videos)
- add a WebStatement to thumbs of files that come without this MetaData information from SDC copyright information
Steps to reproduce (a list of clear steps to create the situation that made you report this, including full links if applicable):
- Go to page [[File:Export to Wikimedia Commons.png]] - https://commons.wikimedia.org/wiki/File:Export_to_Wikimedia_Commons.png (44KB)
- scroll down to MetaData, Click "show extended details": WEbStatement is visible, LicensorURL not
- Download original file, open with exiftool: WebStatement and LicensorURL are visible
- Download thumb: neither WebStatement nor LicensorURL are there
Use case(s) (describe the actual underlying problem which you want to solve, and not only a solution):
- Google image search shows correct license information
- usages of images outside MediaWiki sites contain correct license information